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Serving Knoxville, Tennessee Area Since 1985

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Knoxville, TN 3792

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Whelen VORTEX Series Sirens

The Battery Operated VORTEX™ Series rotating siren system consists of a speaker assembly and electronics cabinet. The VORTEX™ provides an economical alternative for powerful tone communication without compromising quality.


Two models to choose from. Speaker array, electronics cabinet, pole top bracket and 50' cabling all included, all assembled and tested prior to shipping. High efficiency 400 watt speaker drivers Tone Only Gear Driven Rotor Local control push-buttons. Two compartment (Type I) natural finish aluminum electronics cabinet. Minimum of 15 minutes of full power output on battery power, with factory recommended batteries. AC temperature compensated 5 amp battery charger. Six Standard Public Warning Tones - Wail, Whoop, Attack, Hi-Lo, Alert, Airhorn.


  • Solar Power
  • Whelen Approved Batteries
  • Speaker Pole Top Bracket
  • Alternate Tone Set


One Speaker with One Speaker Cell Active

One Speaker with Two Speaker Cell Active

One Speaker with Three Speaker Cell Active

One Speaker with Four Speaker Cell Active

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